JP2002177802A - Roll machine for milling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll machine for milling equipped with a mechanism to easily remove a remaining stock of flour accumulated in the roll machine, when the machine is in maintenance after the operation. SOLUTION: A front door 23 installed at inclined upper side of rolls 4, 5 is formed in such a manner that the lower side of the front door 23 is turned from the front side to the upper side to be self-supported at the upper side by fitting a hinge 43 between the upper part of the front door 23 and a frame 2. A roll cover 33 which covers the outer periphery of the rolls 4, 5 is composed of a main roll cover 37 covering the upper part of the rolls 4, 5 and a feed roll cover 38 covering a guiding chute 31. The first supporting point shaft 39 is inserted between the main roll cover 37 and the feed roll cover 38 so that the main roll cover 37 is able to be folded at the side of the feed roll cover 38. Further, the second supporting point shaft 40 is inserted between the upper part of the feed roll cover 38 and the frame 2 wherein the main roll cover 37 is able to be turned to the upper part in folded state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milling machine for crushing grains, particularly wheat, and more particularly to a milling machine capable of easily removing residual stock deposited on the mill during maintenance after operation. About.

[0002]

2. Description of the Related Art A mill mill 1 used in a mill.
01 (see FIG. 6), a so-called double roll machine having two pairs of rolls 103 and 104 in a frame 102 is well known, and the double roll machine includes a pair of rolls 103 and 104 each having a middle partition. It is divided by 105 to operate independently. Further, such a milling roll machine is arranged such that a line connecting the centers of the roll shafts 106 and 107 is horizontal, which is effective for feeding stock.

[0003]

In the milling machine shown in FIG. 6, the supply hopper 10 is used during maintenance after operation.
8, feeder gate plate 109, feeder roll 11
0,111, guide chute 112 and rolls 103,1
It is necessary to remove the residual stock deposited between the frames 04 and clean it.
Then, the outer door 113 and the side cover (not shown) located at the upper part 02 are removed.

In the conventional milling roll machine, when the outer door 113 is removed, the door 113 is screwed to the frame 102 with many bolts, and the side cover is also screwed to the frame 102 with many bolts. I was The operation of removing the screws requires a long time if a large number of bolts are used, and the operation is troublesome. When the removal of the outer door 113 and the side cover is completed, the feeder gate plate 10 is removed.
9, feeder rolls 110 and 111, guide chute 1
Parts such as 12 are exposed from the opening of the outer door 113, and the operator puts his hand into the frame 102 through the opening of the outer door 113 to remove the remaining stock accumulated on each feeder component.

When the outer door 113 is removed, a roll cover 115 that covers the pair of rolls 103 and 104 appears.
15 may be removed. The roll cover 115 is similarly fixed to the frame 102 with a large number of bolts, and the weight of the cover 115 is as large as about 11 kg.
Since the size is large, for example, 1000 × 300 mm, the removal is a heavy labor, and it is necessary to secure a place for the removed cover.

In view of the above problems, an object of the present invention is to provide a milling roll capable of easily removing residual stock deposited on the roll during maintenance after operation.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has at least a pair of rolls in a frame, and drives each of the pair of rolls at a different peripheral speed. What is claimed is: 1. A milling mill comprising: a roll gap adjusting device for adjusting a roll gap; and stock supply means for supplying a raw material stock between the pair of rolls in a thin layer. A hinge is attached between the upper part of the front door and the frame so that the lower end of the front door is pivoted upward from the near side and becomes independent on the upper side, and covers the outer periphery of the roll. The roll cover is formed into a main roll cover that covers the upper part of the roll, and a feed roll cover that covers the stock supply means. The first between the I over Dror cover 1
With the fulcrum shaft interposed, the main roll cover is configured to be foldable toward the feed roll cover side, and when the feed roll cover is rotated upward, each configuration of the pair of roll surfaces and the stock supply means is provided. A second fulcrum shaft is provided on the upper portion of the feed roll cover between the frame and the feed roll cover so that the remaining stock accumulated by exposing the components can be removed and the main roll cover can be rotated upward in a folded state. Technical measures were taken to adopt a simple configuration.

Thus, when the operator turns the lower end of the front door from the near side to the upper side to stand on the upper side and opens the front door of the roll machine, the roll cover covering the pair of rolls is exposed. . From this state, the main roll cover is folded toward the feed roll cover side, and further, when the feed roll cover is rotated upward with the main roll cover folded, the feeder gate plate, the front side feeder roll, which are the components of the stock supply means, The main roll and the guide chute are exposed.

Then, if stock is accumulated around components such as the feeder gate plate, the front feeder roll and the guide chute, the worker removes the stock by a cleaning means such as an air compressor or a brush. As described above, since the front door and the roll cover do not require bolts for fixing to the frame, there is no need to remove screws, so that maintenance can be completed in a short time and the operation can be simplified.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a central longitudinal sectional view of a double-type milling roll machine. Reference numeral 1 denotes a roll machine. One frame 2 is divided at the center by an intermediate partition plate 3 or the like.
It has a pair of rolls 4 and 5 symmetrically. The pair of rolls 4 and 5 are integrally formed as a pack,
Rolls 4 and 5 are provided with bearings, housings, seals, springs, roll gap adjusting devices, etc., so that the rolls can be exchanged quickly.

The configuration of the roll pack will be described in detail. The moving bearing 6 is disposed near the middle partition plate 3 of the frame 2.
The fixed bearings 7 are respectively arranged on the outer side of the partition plate 3 of the frame 2, and the low-speed roll is mounted on the moving bearing 6 and the high-speed roll is mounted on the fixed bearing 7. The fixed bearing 7 is bolted. While being fixed to the frame 2, the moving bearing 6
Approximately half of the fixed bearing 7 side is formed in the split case 6a, and is detachably fixed to the moving bearing 6 with bolts. Further, the lower end of the moving bearing 6 is pivotally connected to the frame 2 via a roll opening / closing eccentric ring 8, and a roll opening / closing air cylinder 11 is connected to an arm 10 which is pivotally mounted on a main shaft 9 of the eccentric ring 8. Roll gap adjusting means 12 is provided. The upper end of the moving bearing 6 is connected to the roll gap fine adjustment means 13 via a roll adjustment eccentric wheel 14 and a spring 15.

The front walls 16, 16 connected to the upper part of the frame 2 are provided so that the roll pack having the above-described structure can be quickly replaced and exchanged from the frame 2.
The attachment to the frame 2 may be of a fitting type that does not require bolts.

A grinding chamber 18 surrounded by a cover 17 below the rolls 4 and 5 has a lower part serving as an outflow hopper 19, in which a transport pipe 20 for transporting stock after grinding is provided. There is not. Further, in the grinding chamber 18, brush scrapers 21 and 21 for scraping off the stock adhering to the pair of rolls 4 and 5 are provided respectively.
The scraper 21 is supported by the support 22 by the rolls 4 and 5.
In contact with the surface.

A front door 23 is provided on the upper side of the rolls 4 and 5 incline, and a stock supply means is provided between the front door 23 and the partition plate 3. The stock supply means includes a stock supply chamber 25 formed by a stock supply cylinder 24, a supply hopper 26 communicating with the stock supply chamber 25, and a pair of front and rear feed rolls 27 and 28 for supplying the stock to the rolls in a thin layer. Of the pair of feed rolls, a feeder gate plate 29 on the front feed roll 28, a guide plate 30 provided on the side of the supply hopper 26, and a thin layer stock discharged from the front feed roll 28 are crushed. Main rolls 4, 5 for
And a guide chute 31 that flows down to the bottom. Reference numeral 44 denotes a feeder gate plate opening / closing cylinder.

The pair of feed rolls 27, 28
Since the feed roll is for a brake stock other than the number-th brake, a screw conveyor is used instead of the rear feed roll 27. Further, the feeder gate plate 29 is provided with an adjustment handle 32 which can adjust the pressing force to the front feed roll 28 to adjust the flow rate of the stock.

The outer circumferences of the pair of main rolls 4 and 5 are as follows:
It is covered by a plurality of roll covers. That is, the upper part of the main rolls 4 and 5 is covered with the upper cover 33,
The fixed roll 4 side is covered with an outer cover 34, and the moving roll 5 side is covered with an inner cover 35.
The lower part is covered by a lower cover 36.

The upper cover is divided into a main roll cover 37 for preventing the hands from touching the main rolls 4 and 5 and a feed roll cover 38 for preventing the hands from touching between the guide chute 31 paths. A first fulcrum shaft 39 is provided between the main roll cover 37 and the feed roll cover 38, and the main roll cover 37 is folded toward the feed roll cover 38 (folded in the direction of arrow A as indicated by the reference numeral 37 '). Are formed. Further, the feed roll cover 38 is provided with a second fulcrum shaft 40 at an upper portion thereof, and can be turned upward (turned in the direction of arrow B as indicated by reference numeral 38 ') with the main roll cover 37 folded. It is formed to be possible. Code 4
Reference numeral 1 denotes a guide chute cover which covers the guide chute 31 by hanging from the upper portion of the feed roll cover 38. 42
Are provided and are shown in more detail in FIGS.

The front door 23 provided on the inclined upper side of the rolls 4 and 5 is provided with a hinge 43 connecting the upper part and the frame 2, and the lower end of the front door 23 is pivoted upward from the near side. Then, it is formed so as to be completely opened (turned in the direction of arrow C as indicated by reference numeral 23 ′) and to be independent on the upper side.

The operation of the above configuration will be described below.

The refined wheat supplied to the stock supply chamber 25 of the milling roll machine 1 by air conveyance or the like is supplied to the feeder gate plate opening / closing cylinder 44 and the feeder gate adjusting handle 32 so that the feeder gate plate 29 is appropriately opened. As a result, they are fed into the gaps between the main rolls 4 and 5 serving as a brake system via the feed rolls 27 and 28 and the guide chute 31. And rolls 4 and 5
The roll gap is adjusted by the roll gap adjusting means 12 so as to have a preset roll gap. That is, the roll opening / closing air cylinder 11 moves upward to operate the arm 10 and the split case 6a, and moves the movable roll 5 to the fixed roll 4 so as to narrow the roll gap.

The refined wheat supplied to the rolls 4 and 5 is sheared and torn off due to a difference in peripheral speed between the fixed roll 4 and the moving roll 5. If the peripheral speed difference between the fixed roll 4 and the moving roll 5 at this time is, for example, 2.5: 1, the shearing efficiency is improved. The milled wheat that has been crushed by the pair of rolls 4 and 5 and thus becomes a stock,
It flows out into the grinding chamber 18 below the rolls 4 and 5, and is sucked from the transport pipe 20 and put into a shifter (not shown) to be separated according to the particle size.

The temperature of the surfaces of the pair of rolls 4 and 5 during operation rises due to friction with the stock, and there is a risk that the stock fine powder may adhere to the roll surface and crush the eyes of the dressing roll. Because of this, the stocking of the stock is prevented by the brush scraper 21 abutted by the support 22.

When the above-described pulverizing process is completed, a maintenance operation of the milling roll machine 1 is performed.
The maintenance work includes early detection of a failure of the roll machine 1, prevention of breakage of the machine, cleaning, and the like. In this embodiment, the maintenance work is performed on a scraper, a feeder unit, and a main roll unit, which require daily maintenance and inspection. The removal of the remaining stock will be described with reference to the drawings.

FIG. 2 is a schematic operation view showing folding of the main roll cover and upward rotation of the feed roll cover, and FIG. 3 is a schematic perspective view showing a state in which the roll cover is covered. 4 is a schematic perspective view showing a state where the main roll cover is folded, and FIG. 5 is a schematic perspective view showing a state where the feed roll cover is turned upward.

In order to remove the remaining stock accumulated in the roll machine 1, first, a front door 23 shown by reference numeral 23 in FIG.
The lower end is turned upward from the near side (turned in the direction of arrow C as indicated by reference numeral 23 ′), completely opened, and fixed so as to be independent on the upper side. Thereby, the operation of removing the screw can be omitted, and the front door 23 can be easily opened.

When the front door 23 is opened, the roll covers 33, 34 of the main rolls 4, 5 are exposed (see FIGS. 2A and 3). Since the upper cover 33 above the main roll 4 is only placed on the outer cover 34, the main roll cover 37
Can be easily folded toward the feed roll cover 38 (see FIGS. 2B and 4). Further, the feed roll cover 37 can be rotated upward with the main roll cover 37 folded about the second fulcrum shaft 40 (see FIGS. 2C and 5).

When the feed roll cover 37 is rotated upward (FIGS. 2C and 5), the front feeder roll 28, the main rolls 4, 5, and the guide chute 31 are exposed.

Then, the operator operates the front feeder roll 2
8. Guide chute 31 and feeder gate plate 29
If the stock is accumulated around the feeder component, the stock is removed by a cleaning means such as an air compressor or a brush. Further, since the feeder components are exposed, residual stock, dust and the like accumulated in the supply hopper 26 can be easily removed. Regarding the feeder gate plate 29, the fulcrum shaft is inspected, and it is checked whether or not the feeder gate plate 29 is freely rotated so as not to cause excessive play due to wear. With respect to the main rolls 4 and 5, it is checked whether or not the stock fine powder adheres to the roll surface and the eyes of the sharpening roll are crushed. If the eyes are crushed, the operation of the brush scraper 21 is improper and needs to be corrected.
As a modification, first, the fitted front wall 16 and the lower cover 36 are removed from the frame 2, and if stock is accumulated on the brush scraper 21, the stock is removed by an air compressor or the like, and the brush scraper 21 is removed. It is advisable to adjust the contact positions between the rollers and the rolls 4 and 5, and replace the brush scraper 21 as necessary.

[0030]

As described above, according to the present invention, the front door provided on the upper side of the roll is provided with a hinge between the upper part of the front door and the frame so that the lower end of the front door is on the front side. The roll cover that covers the outer periphery of the roll is formed of a main roll cover that covers the upper part of the roll, and a feed roll cover that covers the stock supply unit, while being formed so as to rotate upward from above and become independent on the upper side. A first fulcrum shaft is provided between the main roll cover and the feed roll cover so that the main roll cover can be folded toward the feed roll cover, and the feed roll cover is moved upward. When rotated, the components of the pair of roll surfaces and the stock supply means are exposed so that the accumulated remaining stock can be removed. A second fulcrum shaft is provided on the upper portion of the feed roll cover between the feed roll cover and the frame so that the main roll cover can be rotated upward in a folded state. When the front door of the roll machine is opened by rotating from the side to the upper side to stand on the upper side and the front door of the roll machine is opened, the roll cover covering the pair of rolls is exposed. From this state, the main roll cover is folded toward the feed roll cover side, and further, when the feed roll cover is rotated upward with the main roll cover folded, the feeder gate plate, the front side feeder roll, which are the components of the stock supply means, The main roll and the guide chute are exposed.

Then, if the stock is accumulated around the components such as the feeder gate plate, the front feeder roll, and the guide chute, the stock is removed by a cleaning means such as an air compressor or a brush. As described above, since the front door and the roll cover do not require bolts for fixing to the frame, there is no need to remove screws, so that maintenance can be completed in a short time and the operation can be simplified.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view of a mill for milling of the present invention.

FIG. 2 is a schematic action diagram showing folding of a main roll cover and upward rotation of a feed roll cover.

FIG. 3 is a schematic perspective view showing a state when a roll cover is covered.

FIG. 4 is a schematic perspective view showing a state where a main roll cover is folded.

FIG. 5 is a schematic perspective view showing a state in which a feed roll cover is turned upward.

FIG. 6 is a central vertical sectional view of a conventional milling roll machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roll machine 2 Frame 3 Middle partition plate 4 Roll 5 Roll 6 Moving bearing 7 Fixed bearing 8 Roll opening / closing eccentric wheel 9 Main shaft 10 Arm 11 Roll opening / closing air cylinder 12 Roll gap adjusting means 13 Roll gap fine adjusting means 14 Roll adjusting Eccentric wheel 15 Spring 16 Front wall 17 Cover 18 Grinding chamber 19 Outflow hopper 20 Transport pipe 21 Brush scraper 22 Supporter 23 Front door 24 Stock supply cylinder 25 Stock supply chamber 26 Supply hopper 27 Feed roll 28 Feed roll 29 Feeder gate Plate 30 Guide plate 31 Guide chute 32 Adjusting handle 33 Upper cover 34 Outer cover 35 Inner cover 36 Lower cover 37 Main roll cover 38 Feed roll cover 39 First fulcrum shaft 40 Second fulcrum shaft 41 plan Chute cover 42 finger guard 43 hinge 44 feedergate plate opening-closing cylinder

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Atsushi Fukui 2-30 Saijo Nishihonmachi, Higashihiroshima City, Hiroshima Prefecture Inside Satake Works Co., Ltd. (72) Inventor Kenshi Okamoto 2-30 Saijo Nishihonmachi, Higashihiroshima City, Hiroshima Prefecture F-term in Satake Manufacturing Co., Ltd. (reference) 4D063 CC01 CC06 GA04

Claims (1)

[Claims] 1. A roll gap adjusting device that has at least a pair of rolls in a frame, drives each of the pair of rolls at a different peripheral speed, and adjusts a roll gap between the pair of rolls. A milling roll machine comprising a stock supply means for supplying a thin layer between the pair of rolls, wherein a front door provided on the upper side of the roll is provided with a hinge between an upper portion of the front door and the frame. At the same time, the lower end of the front door is formed so that the lower end of the front door pivots upward from the near side and becomes independent on the upper side, and the roll cover that covers the outer periphery of the roll is a main roll cover that covers the upper part of the roll, A feed roll cover that covers the stock supply means, and a first fulcrum shaft is provided between the main roll cover and the feed roll cover. The main roll cover is configured to be foldable toward the feed roll cover side, and when the feed roll cover is rotated upward, the components of the pair of roll surfaces and the respective components of the stock supply unit are exposed and deposited. A second fulcrum shaft is provided on the upper portion of the feed roll cover between the feed roll cover and the frame so that the main roll cover can be turned upward in a folded state so that residual stock can be removed. Milling roll machine.